Niobium Pentachloride Activation of Enone Derivatives: Diels-Alder and Conjugate Addition Products
Molecules, 2002 Niobium pentachloride has proven to be a powerful activating agent for Diels-Alder or conjugate addition reactions of cycloenones. The Diels-Alder product was obtained only with an unsubstituted enone (cyclohexenone) and the highly reactive diene ...
Gil Valdo José da Silva +2 more
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Applications of Danishefsky's dienes in asymmetric Oxo-Diels-Alder reactions
, 2022 Applications of Danishefsky's dienes in catalytic asymmetric hetero-Diels-Alder (AHDA) reactions or specifically, their asymmetric Oxo-Diels-Alder (AOxo-DA) reactions with appropriate dienophiles are highlighted in detail, including the preparation of
AfsanehTaheri kal Koshvandi (11996987) +1 more
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Masked Bisketenes as Diels–Alder Dienes [PDF]
, 2020 2,5-Bis(tert-butyldimethylsilyloxy)furans are established as masked vicinal bisketenes for application as dienes in the Diels–Alder reaction.
Emma, Becroft +4 more
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Diels-Alder Additions to 2,2’-Biaceanthrylene [PDF]
, 2021 A series of Diels-Alder reactions between the diene 2,2’-biaceanthylene and several dienophiles is presented. The diene is a cyclopenta-fused polycyclic aromatic hydrocarbon with anthracene units linked by two cyclopentene rings.
Kyle, Plunkett, Yachu, Du
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An Asymmetric Synthetic Approach to the A-ring of the Taxol Family of Anti-Cancer Compounds
Molecules, 1998 A synthetic route developed for the preparation of the A-ring of Taxol family of molecules is reported. By means of an intramolecular Diels-Alder reaction an asymmetric approach to this ring has been accomplished.
M. L. Marin, D. Craig
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Synthesis and Spectrophotometric Analysis of 1-Azafluorenone Derivatives
Molecules, 2020 A new extension for the ‘one pot’ construction of diverse 1-azafluorene derivatives featuring a Diels–Alder/retro-Diels–Alder cycloaddition is reported. Conditions were also determined for oxidation to the derived azafluorenones.
Nicholas H. Angello +3 more
doaj +1 more source
Screening of chiral Diels-Alder catalysts by mass spectrometric monitoring of the retro reaction [PDF]
, 2007 A rapid screening procedure for the identification of chiral Diels-Alder catalysts by ESI MS was developed. Screening of the retro reaction made it possible to indirectly determine the catalyst’s enantioselectivity for the forward, product-forming ...
Teichert, Antje Maria
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Aqueous Ti(IV)-Catalyzed Diels-Alder Reaction
Molecules, 2007 The aqueous Diels-Alder reaction of 1,3-cyclohexadiene with 1,4-benzoquinone was compared and contrasted to the same reaction catalyzed with Flextyl P™, a novel Ti(IV) performance catalyst.
Kyle E. Litz
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Oxidative [4+2] annulation of styrenes with alkynes under external-oxidant-free conditions
Nature Communications, 2018 A sequence of a Diels–Alder reaction and oxidation is a powerful route to valuable aromatic compounds. Here, the authors report a more atom-economical oxidant-free strategy involving a Diels–Alder with H2 evolution under noble-metal-free photoredox ...
Guoting Zhang +5 more
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A broadly applicable Diels-Alder based Synthesis of Ketamine related Arylcyclohexylamines [PDF]
, 2022 Herein we report the synthesis of both aryl derivatives of ketamine and aryl derivatives of ketamine’s major metabolites hydroxynorketamine (HNK), norketamine (NK) and dehydronorketamine (DHNK) via a microwave-assisted Diels-Alder reaction to form the ...
Sherif, El Sheikh +3 more
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